NEW
Font size
WorksheetsUnit 4 - Peripheral Neurology Exam
Total questions: 40
Worksheet time: 24mins
The process by which neighbouring neurons communicate with each other
Neurotransmitters
Synaptic transmission
Endocrine system
Nervous system
Identify the structure labelled B.
neurotransmitter
synapse
vesicle
myelin
Identify the structure labelled C
dendrite
neurotransmitter
receptor
schwann cell
Neurotransmitter molecules diffuse across the synapse before binding to ...... on the post synaptic cell
receptors
schwann cells
the nodes of Ranvier
the axon hillock
When an action potential reaches the terminal button it causes...
vesicles to migrate towards and fuse with the cell membrane
neurotransmitter molecules to bind to the receptor sites on the postsynaptic cell
enzymes to breakdown leftover molecules of neurotransmitter in the synaptic cleft
chloride ions to flood into the postsynaptic cell
The tiny gaps between neighbouring neurons is called the...
synaptic cleft
vesicle
transporter molecule
terminal button
Sometimes neurotransmitters make the postsynaptic cell more likely to fire, this is called an ........ effect.
excitatory
inhibitory
Based on our knowledge of how synaptic transmission works, why are illicit drugs addictive?
After prolonged use, you begin to need more and more dopamine to feel the same level of happiness
After prolonged use, your receptors adapt to convince you to want to feel that "good" again.
After prolonged, you start to lose receptors
All other choices are correct.
In a reflex action, the __________ bypasses the ___________
Motor neuron, brain
Sensory neuron, brain
Sensory neuron, spinal cord
Motor neuron, spinal cord
An example of a reflex action includes
Touching a butterfly
Brushing your hand against the side of your body
Touching a hot stove
Your legs moving as you walk
In a reflex arc, the sensory neuron leads to the ___________ and the motor neuron leads to the __________
Spinal cord, CNS
CNS, muscle
Spinal cord, muscle
Muscle, CNS
What type of neuron is A?
Sensory
Inter
Motor
What type of neuron is C?
Sensory
Inter
Motor
Reflex actions are important because
They provide a quick, involuntary response
They prevent injury
They are essential to the survival of organisms
All of the above
The tables attached were taken from a reaction time and reflex lab. According to the tables attached and what you know about reflexes, which of these statements is correct?
Table #1 represents reflexes, which require longer neural pathways.
Table #1 represents reflexes, which require shorter neural pathways.
Table #2 represents reflexes, which require longer neural pathways.
Table #2 represents reflexes, which require shorter neural pathways.
The tables attached were taken from a reaction time and reflex lab. What conclusions can be drawn based on the data?
The data shows that reflexes are 63% faster than voluntary reactions.
The data shows that voluntary reactions are 63% faster than reflexes.
The data shows there are no significant differences in voluntary reaction time and reflexes.
There is not enough data to make any conclusions.
General Isreal Putnam is credited at the Battle of Bunker Hill with a great strategy, shouting "Don't shoot until you see the whites of their eyes!" What part of the eye was General Putnam describing?
Where is our eye's natural "blind spot"?
at the very top of the eye
anywhere there are no cones in the retina
directly behind the pupil in the fovea centralis (where the light focuses most)
right where the optic nerve interrupts the retina (and therefore there are no rods or cones)
Light passes through the following structures in which order?
vitreous humor, lens, aqueous humor, cornea
cornea, aqueous humor, lens, vitreous humor
aqueous humor, cornea, lens, vitreous humor color.
cornea, vitreous humor, lens, aqueous humor
Which of the following is a photoreceptive cell that resides in the retina and senses shades of grey, instead of red, blue, and green?
Greg was told to focus on the house in the distance. He can see that fine (as shown in the picture on the left). He was then told to focus on the plants in the garden close by, which he could not (shown in the picture on the right). What eye condition does Greg have?
John has bad eyes. What he sees at 20 feet, his friend with fine vision can see at 80 feet. What is the specific quality that is bad about John's vision?
his visual acuity
his peripheral vision
his color vision
his depth perception
Which activity might be most benefitted from someone with good depth perception?
Driving
Card games
Needlepoint
Reading a book
What skill might be most negatively affected from someone who has a defect in their retinal cone cells?
seeing lights at night
distinguishing details about a person's face
reacting quickly to moving objects
sorting M&M's by color
What fact about color blindness is true?
African American people have it more.
It is more common in men.
it is equal in everybody.
It is more common in women.
A score of 20/100 from a Snellen eye examination means that
the subject can see at 20 feet what normal people can see at 100 feet
the subject can see at 100 feet what normal people can see at 20 feet
the subject can see at 20 feet what normal people can see at 80 feet
the subject can see one-fifth of the number of things a normal person can see.
If a person has a good night vision, it could be predicted that they have larger than normal
number of cones
number of rods
blind spot diameter
peripheral vision
Which of the following may be corrected with contacts and/or glasses?
Myopia
Hyperopia
Both
Neither
